How to Use a Gas Pressure Washer in 11 Easy Steps

Would you like to know how to use a gas pressure washer to clean a driveway or a sidewalk? You might think that’s quite a challenge, but it is actually not. Pressure washing can make a world of difference to how your property appears.

Trust me. You’ll be glad you did.

In fact, it would be a good idea to do so about a couple of times a year.

Pressure cleaning can be done when you notice the presence of algae on the concrete outside your home. It helps you to get rid of the algae and  dirt as well.

So ask yourself, can you really afford not to?

In all likelihood, you will be able to use a power cleaner quite easily, as these come with an instruction manual. Read on to learn How to set up a gas pressure washer easily

How to use a gas pressure washer

Step#1 :   Remove the lid of the gas tank by unscrewing it. Now tilt the gas tank forward to fill it up. Sounds easy enough but there are a series of other steps to follow.

Step#2:   Now, you can see two ports on the washer. The first one to attach the pressure washer gun and the second one to attach the garden hose.

Prior to attaching the pressure water hose there is a word of caution for you. You have to check if the screen is in order.

You may wonder why it is important.

Well it is important because you don’t want to position it wrongly or have holes in it.

Now, tighten up it by hand to the point that we need to use a wrench to make it really leak proof. This is because you don’t want any leakage or spillage onto the deck or any other surface you are on. An adjustable wrench or a pair of vise grips would help you do that very well. This way, you can reduce the water usage.

Step#3:  The garden hose and the pressure hose need to be attached next. Pull back the pressure hose and the presence of little balls inside it will ensure that it is securely locked in place. You can check out that it is secure by pulling back once and then releasing it. It is now time to attach the gun to the pressure hose.



Be very careful that you do not turn on the power cleaner without turning on the water. After you have turned on the water supply, you need to release the trigger of the gun to expel air from the water pump. Air as such can damage the water pump and it is therefore important for you to purge air from pump.

Now, how can you confirm that there is no air inside the pump?

Wait till the sputtering stops and you have steady water flow. If hose is longer, you can expect more air inside it.

Step#5:  Next, we decide the pressure washer nozzles that are just right for cleaning the surface. Your pressure washer comes with different types of nozzles. The wider the nozzle, the less impactful the stream is.

For a concrete surface, a medium sized nozzle will do just fine. Never use 0° nozzle if you have less stain to remove.

Step#6:  Ensure that you point the nozzle away from yourself while inserting it. Beat your temptations to play with your friend using pressure cleaner as it can cause damage. Also, ensure that it is securely fastened or the pressurized jet of water might hit somebody and hurt him or her. It can even bounce back and hit you once you commence the cleaning process.

Step#7:  Now, let’s start the engine – the heart of a pressure cleaner. Turn on the throttle. Most power washers are equipped with a throttle.  Often the engine won’t crank right away. Releasing the pressure on the trigger every minute or so should do the trick. Don’t let the gun sit idle by not pulling the trigger. If you don’t pull the trigger every couple of minutes the pressure build- up is going to make cranking the engine extremely difficult.

Step#8:  Turn the gas on once you achieve throttle.

Step#9:  Start the engine now by applying a little bit of force. Wham! Now turn off the throttle.


Pressure Washer Safety Tips

Every time you pull the trigger, you have to point the nozzle in a direction away from yourself and others. Ensure that you are not hit by the blast of pressurized water. Remember to wear goggles as flying debris and dirt can hit you in the eye. Holding the tip a few inches away from the ground is the sensible thing to do.

You may want to hold the power washer close to the ground in the case of tough stains and a little away in the case of regular dirt.


  • Be careful not to get too close to the ground as you might end up puncturing the concrete.
  • Never point towards your feet as it could hurt you.

If not done right, pressure washing can mess up your house, driveway, and clothes by spraying them with dirt.

Step#11: After the cleaning gets over shut down the power washer and turn off the engine and the water supply. Next, release any remaining system pressure by releasing the trigger. Detach the garden hose and if required turn off the fuel valve. Next, remove the nozzle and the pressure hose. Now drain out the water through the hose. Finally, rinse your pressure washer and store it away.

Pressure Washing Your Roof

Not everyone fancies cleaning the roof and certainly not shingles. But all the same don’t you want to get rid of all the accumulate algae and lichen? Here’s how we can do it.

A pressure washer if not used the right way can end up damaging the shingles. You must use the appropriate spray wand tip to prevent that from happening. 25nozzle is the right one to use. It will generate an incredibly effective stream of water that will dislodge the moss and the lichen and will not damage the shingles. Do take care to stand on a dry portion of the roof as moss and lichen can be terribly slippery.

What is the right method for cleaning the roof?

You need to aim the power washer down the roof and never up. This is because you don’t want water to force its way under the shingles and spring a leak in your roof.

The tip of the pressure washer wand has to be kept at least a foot away from the surface of the shingles when you commence cleaning. Wash one shingle first to ensure that the water pressure does not strip the colored granules from the shingles. You may need to adjust the distance between the spray tip and the shingles to obtain maximum cleaning and no damage. If need be, you can stop occasionally to ensure you are doing it right. The power washer cleans the shingles quite safely and you should be in no hurry to complete the job.

It’s a good idea to stow away the washer somewhere indoors in the off season. This will prevent damage to the pump, hose and spray wand. You can alternatively use special anti- freeze to winterize the equipment. A gas powered washer that does not see use for a month or more needs to be drained to prevent damage to the engine. One also has the option of putting a gas preservative into the fuel tank.


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